mirror of
https://github.com/betaflight/betaflight.git
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85 lines
2.2 KiB
C++
85 lines
2.2 KiB
C++
/*
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* This file is part of Cleanflight.
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*
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* Cleanflight is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Cleanflight is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Cleanflight. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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extern "C" {
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#include "common/encoding.h"
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#include "common/utils.h"
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}
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#include "unittest_macros.h"
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#include "gtest/gtest.h"
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typedef struct zigzagEncodingExpectation_s {
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int32_t input;
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uint32_t expected;
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} zigzagEncodingExpectation_t;
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typedef struct floatToIntEncodingExpectation_s {
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float input;
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uint32_t expected;
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} floatToIntEncodingExpectation_t;
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TEST(EncodingTest, ZigzagEncodingTest)
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{
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// given
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zigzagEncodingExpectation_t expectations[] = {
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{ 0, 0},
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{-1, 1},
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{ 1, 2},
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{-2, 3},
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{ 2, 4},
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{ 2147483646, 4294967292},
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{-2147483647, 4294967293},
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{ 2147483647, 4294967294},
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{-2147483648, 4294967295},
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};
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int expectationCount = ARRAYLEN(expectations);
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// expect
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for (int i = 0; i < expectationCount; i++) {
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zigzagEncodingExpectation_t *expectation = &expectations[i];
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EXPECT_EQ(expectation->expected, zigzagEncode(expectation->input));
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}
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}
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TEST(EncodingTest, FloatToIntEncodingTest)
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{
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// given
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floatToIntEncodingExpectation_t expectations[] = {
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{0.0, 0x00000000},
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{2.0, 0x40000000}, // Exponent should be in the top bits
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{4.5, 0x40900000}
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};
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int expectationCount = ARRAYLEN(expectations);
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// expect
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for (int i = 0; i < expectationCount; i++) {
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floatToIntEncodingExpectation_t *expectation = &expectations[i];
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EXPECT_EQ(expectation->expected, castFloatBytesToInt(expectation->input));
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}
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}
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// STUBS
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extern "C" {
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}
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